Lactose intolerance is very common in adults. It is rarely dangerous. Around 30 million American adults have some degree of lactose intolerance by age 20. 1  In Caucasians, lactose intolerance often develops in children older than age 5.  In African Americans, the problem can occur as early as age 2.
The winter flounder is one of five species in the genus Pseudopleuronectes along with the Yellow-striped flounder, Cresthead flounder, Marbled flounder, and Dark flounder. It is the only cogener to inhabit the Atlantic Ocean.
Any of numerous parasitic flatworms, including the trematodes, some of which infect humans, and the monogeneans, which are chiefly ectoparasites of fish. 2. Any of various flatfishes chiefly of the genus Paralichthys, especially the summer flounder. [Middle English, flounder, flatfish, from Old English flÅc; see plÄk- in Indo-European roots. Sense 1, from the flounderlike shape of sheep flukes .]